ASTROSAT CZTI

Data Quality Report

Orbit 35005

Creation date: 2024-06-27T21:08:10.466636
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T05_010T01_9000005016_35005cztM0_level2.evt modeM0/AS1T05_010T01_9000005016_35005cztM0_level2_quad_clean.evt
Size (bytes)442,794,24078,822,720
Size422.3 MB 75.2 MB
Events in quadrant A2,595,323508,427
Events in quadrant B3,119,275516,335
Events in quadrant C3,049,343500,590
Events in quadrant D4,269,470473,610

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113313
B0130072
C0122392
D0166762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5549100.180213%
B55491081.946297%
C55491172.108488%
D55491352.432871%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7133 5550 2 2 0.03% 0.04%
B 7133 5550 56 56 0.79% 1.01%
C 7133 5550 97 97 1.36% 1.75%
D 7133 5550 102 102 1.43% 1.84%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 75311 577.35 645 634 129.3
A 13 254 9079 65.29 645 634 129.3
A 15 169 8524 61.0 645 634 129.3
B 5 172 271993 2195.58 643 625 123.6
B 0 190 123143 991.27 643 625 123.6
B 0 197 70387 564.43 643 625 123.6
C 0 10 300975 2054.01 631 637 146.2
C 15 214 230463 1571.78 631 637 146.2
C 15 159 25481 169.91 631 637 146.2
D 8 195 1209837 7875.37 627 610 153.5
D 10 118 176369 1144.67 627 610 153.5
D 5 223 115024 745.15 627 610 153.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter